Influence of Radial Flows on Power Density and Gas Stream Pressure Drop of Tubular Solid Oxide Fuel Cells

The development of solid oxide fuel cells (SOFCs) for powering vehicles requires high power densities. radial flows generated by the insert structures in SOFC channels could improve density facilitating to enter porous anode electrochemical reactions. In this paper, we developed a 2D axisymmetric numerical model examine influence convergent conical ring on flow and mass transfer characteristics tubular SOFC. conductance was analyzed proposed quantify performance different designs. effects radius offset angle were examined analyzed. We demonstrate that increasing increase effectively net output 12% while inserts exhibits negligible impact conductance. Increasing help reduce gas-phase pressure drop 42%. present study helps our understanding relationship between It also proposes channel design methods based high-power-density cells.